If 4 FIRST TIME SKIERS (southern women who are 40 something) want to learn to ski, is it best to take a "private" lesson (just the 4 of us) and split the cost among us, or just take a group lesson? I guess I am wondering how many are in the group lessons, typically. We will be there at the end of January when it is designated "value" season. We really want to learn to get down the easy green slopes as quickly as possible. But also, as inexpensively as possible. What do you recommend?